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ImageMagick: PALM and DCM buffer overflows



ImageMagick: PALM and DCM buffer overflows
ImageMagick: PALM and DCM buffer overflows



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Gentoo Linux Security Advisory                           GLSA 200611-19
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http://security.gentoo.org/ 
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  Severity: Normal
     Title: ImageMagick: PALM and DCM buffer overflows
      Date: November 24, 2006
      Bugs: #152672
        ID: 200611-19

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Synopsis
=======
ImageMagick improperly handles PALM and DCM images, potentially
resulting in the execution of arbitrary code.

Background
=========
ImageMagick is a software suite to create, edit, and compose bitmap
images, that can also read, write, and convert images in many other
formats.

Affected packages
================
    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  media-gfx/imagemagick      < 6.3.0.5                   >= 6.3.0.5

Description
==========
M. Joonas Pihlaja has reported that a boundary error exists within the
ReadDCMImage() function of coders/dcm.c, causing the improper handling
of DCM images. Pihlaja also reported that there are several boundary
errors in the ReadPALMImage() function of coders/palm.c, similarly
causing the improper handling of PALM images.

Impact
=====
An attacker could entice a user to open a specially crafted DCM or PALM
image with ImageMagick, and possibly execute arbitrary code with the
privileges of the user running ImageMagick.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All ImageMagick users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/imagemagick-6.3.0.5"

References
=========
  [ 1 ] CVE-2006-5456
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5456 

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200611-19.xml 

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at 
http://bugs.gentoo.org. 

License
======
Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5 

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